Java RMI - Client Timeout

Question

I\'m building a Distributed System using Java RMI and it must support a server loss.

If my client is connected to a Server using RMI, if this server goes down (cable

Answer 1

There is a system property that you can set.
Something like sun.rmi.transport.connectionTimeout

They are detailed here:
https://docs.oracle.com/javase/7/docs/technotes/guides/rmi/sunrmiproperties.html

Answer 2

I recently encountered this problem as well and found that I needed to set the following Java property in order for an RMI call to timeout on the client side:

sun.rmi.transport.tcp.responseTimeout

Here is the full scoop on these params in newer versions of Java:

• http://docs.oracle.com/javase/6/docs/technotes/guides/rmi/sunrmiproperties.html
• http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/sunrmiproperties.html

Answer 3

You can use custom socket factories. It works fine , It is not static and deprecated and against the system property, it does not apply to the whole JVM. But the point is that the code is on the server side.

Creating a Custom RMI Socket Factory

Answer 4

For socket read timeout, you can set your own factory like this,

           RMISocketFactory.setSocketFactory( new RMISocketFactory()
            {
                public Socket createSocket( String host, int port )
                    throws IOException
                {
                    Socket socket = new Socket();
                    socket.setSoTimeout( timeoutMillis );
                    socket.setSoLinger( false, 0 );
                    socket.connect( new InetSocketAddress( host, port ), timeoutMillis );
                    return socket;
                }

                public ServerSocket createServerSocket( int port )
                    throws IOException
                {
                    return new ServerSocket( port );
                }
            } );